JPH0328751Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a portable spark discharger used for promoting the growth of mushrooms.

(Conventional technology) It is known that mushrooms often appear and grow quickly during the season when there is a lot of lightning. Taking a hint from this, we artificially planted mushroom fungi on the wood of the tree. Experiments have been carried out to stimulate the cell functions of bacteria by using a high-voltage spark discharge.

(Problem that the invention aims to solve) However, apart from being used in laboratories and experimental farms, it is difficult to bring in and install a high-voltage discharge device using an AC power source at an open field cultivation site for mushrooms, which is usually set up in a mountain forest. However, it is not easy to secure a power supply line and have security issues, and it has also been difficult to put it into practical use due to equipment costs.

Therefore, the purpose of this invention is to develop a portable system that can accurately promote the growth of mushrooms using an electric shock even in outdoor cultivation fields in mountain forests where it is difficult or costly to install power lines. The purpose of the present invention is to provide a type discharger.

(Means for solving the problem) The portable discharge device for promoting mushroom growth of the present invention will be explained below using the reference numerals in the attached drawings. A power supply circuit 2, a capacitor 3 charged with the DC high voltage, and a primary winding connected to the capacitor 3
A pulse transformer 4 which is incorporated into the charging/discharging circuit of the capacitor 3 and having a pair of electrodes 5 and 6 connected to the secondary winding, and a thyristor 7 which opens and closes the charging/discharging circuit of the capacitor 3.
A trigger circuit 8 that repeatedly turns on and off the thyristor 7 is housed in a portable container 9, and the pulse voltage generated by charging and discharging the capacitor 3 is further boosted by the pulse transformer 4, and Spark discharge is caused between the more protruding electrodes 5 and 6.

(Embodiment) In the illustrated embodiment, a Nickel Gatrime battery with a rated voltage of 7.2V or an alkaline battery with a rated voltage of 9.0V is used as the DC low voltage power supply 1. This low DC power supply voltage is obtained by the transistor Q, diode D ₁ , capacitors C ₁ , C ₂ , and resistor connected to the primary side of the transformer T ₁ as shown in Figure 1.
A high DC voltage of approximately 700V is generated by the power supply circuit 2 consisting of R ₁ , R ₂ , R ₃ and diodes D ₂ , D ₃ , D ₄ , D ₅ connected to the secondary side of the transformer T ₁ . is,
Applied to capacitor 3.

Trigger circuit 8 of thyristor 7 is a capacitor
The thyristor 7 is composed of R ₃ , diac Q ₂ , and resistors R ₄ and R ₅ , and is alternately turned on and turned off at a constant period. The charge in the capacitor 3 is discharged to the primary winding of the pulse transformer 4 when the thyristor 7 is turned off, and when the thyristor 7 is turned on, charging of the capacitor 3 is resumed.

The pulse voltage obtained by repeatedly charging and discharging the capacitor 3 is significantly boosted by the pulse transformer 4, and the secondary electrode 5,
Sparks intersect between the two, and a spark sound is generated at the same time. This discharge voltage is 45-50KV, the current value is 300μA-1000μA, and the spark cycle is 0.05-0.1 seconds. When the switch 12 is released, the spark discharge stops.

In the illustrated embodiment, a DC low voltage power supply mounting part 13 such as a dry battery is provided within the base end of the cylindrical container 9,
The DC low voltage power supply 1 is housed with the base cover 14 removed. A wave-shaped hand grip part 1 is provided on the outside of the DC low voltage power supply mounting part 13 to ensure grip and support.
5 is provided. Electrodes 5 and 6 are provided protruding from the tip of the cylindrical container 9, and inward test electrodes 10 and 11 are branched from the electrodes 5 and 6. electrodes 5, 6
It is butted and connected to the end face 16a of the hoda tree 16.

Various circuit configurations can be adopted as the power supply circuit 2 and the trigger circuit 8, and the circuit configurations are not limited to those shown in the drawings. Further, if a commercial AC power source or the like can be used due to the mushroom cultivation location, etc., a DC low voltage power source 1 may be used, for example, using a DC adapter with a rated voltage of 9 V and a rated current of 600 mA or more.

(Experiment Example 1) Six logs were inoculated with Shiitake fungus for spring release, variety No. 121 sold by Mori Sangyo Co., Ltd., in February 1985, three of which were used as a test plot, and the remaining three were used as a control plot. And so.

As shown in Figure 3, each hoda tree was erected diagonally on the ground according to the open field cultivation method, watered three times during one round, and turned over once a month.

For the test area, the voltage is 45~50KV and the current is
300μA~1000μA, spark cycle 0.05~0.1
The discharge electrode of a second discharger was connected to the end face of the wood, and high voltage was applied for 2 to 5 seconds. Electric shock was applied using this discharger three times per week, and water was poured into the wood before applying the electric shock.

No discharge treatment using a discharge device was applied to the Hodagi in the control plot.

Due to the above cultivation conditions, the Showa
Shiitake mushrooms appeared in early September 1961, and no shiitake mushrooms appeared in Hodagi in the control area.

The shiitake fungus used in the experiment is usually harvested around March of the following year if inoculated in January, but in this experiment it was ready to be harvested about 6 months after inoculation.

(Experiment Example 2) A test plot with 56 Hodagi and 56 control plots inoculated with Shiitake mushroom fungi at the same time were assembled separately into parallel grids as shown in Figure 4, and then grown using the normal greenhouse cultivation method. Accordingly, the cultivation was managed, and the test plots were given an electric shock for 2 to 3 seconds three times a week using this discharger, while the control plots were not given an electric shock.

The yield during the same period was 5.6 kg in the test plot and 5.1 kg in the control plot, an increase of about 9%.

(Experiment Example 3) A test plot of 26 Hodagi and 26 control plots inoculated with Shiitake fungi at the same time were left in an armored position as shown in Figure 5, and grown according to the usual greenhouse cultivation method. Cultivation is managed, and the test plots are treated with this discharger three times a week.
An electric shock was given for 2-3 seconds, and no electric shock was given to the control group.

The yield during the same period was 3.3 kg in the test plot and 2.5 kg in the control plot, an increase of approximately 24%.

From the above experimental examples, the present discharge device significantly shortened the generation and growth period of shiitake mushrooms, and also significantly increased the yield of shiitake mushrooms. Similar trends were observed for other mushrooms.

(Effects of the invention) As described above, according to the discharge device of the present invention, the generation and growth period of mushrooms is significantly shortened, and the yield is also greatly increased.
A portable container 9 contains a DC low voltage power supply 1, a power supply circuit 2 that generates DC high voltage from the DC low voltage power supply 1, a capacitor 3 to which the DC high voltage is applied, and a primary winding connected to the capacitor. A pulse transformer 4 is incorporated into the charging/discharging circuit of 3 and has a pair of electrodes 5 and 6 connected to the secondary winding, a thyristor 7 opens and closes the charging/discharging circuit of the capacitor 3, and the thyristor 7 is repeatedly turned on and off. The pulse voltage generated by charging and discharging the capacitor 3 is further boosted by the pulse transformer 4, and the electrode 5 protrudes from the end of the container 9.
If a dry battery that can be easily carried anywhere is used as the DC low-voltage power source 1, there will be no need to connect power lines, which is a cost increase factor, even in outdoor cultivation fields in mountains and forests. A method for promoting the growth of mushrooms using an electric shock can be implemented at low cost without requiring any construction work or installation of a fixed high voltage generator.

In addition, since all the circuit parts including the power supply are housed in the container 9, the electrodes 5 and 6 can be directly connected to the required locations of the wood that has been inoculated with mushroom fungi or where mushrooms have grown. Spark discharge of the required strength can be performed accurately and with good work efficiency by bringing them into contact.
The effects of the electric shock method can be maximized.

[Brief explanation of drawings]

FIG. 1 is an electric circuit diagram of a discharge device for promoting growth of mushrooms according to an embodiment of the present invention, and FIG. 2 is a perspective view of the discharge device. FIG. 3 is a schematic perspective view showing an experimental process of the discharge device, FIG. 4 is a schematic perspective view showing another experimental process of the discharge device, and FIG. 5 is a schematic perspective view showing another experimental process of the discharge device. It is a schematic perspective view showing a process. 1... DC low voltage power supply, 2... Power supply circuit, 3...
...Capacitor, 4...Pulse transformer, 5,6
... Electrode, 7 ... Thyristor, 8 ... Trigger circuit, 9 ... Container, 10, 11 ... Test electrode, 1
2...Switch, 13...DC low voltage power supply attachment part, 14...Base lid, 15...Hand grip part, 16...Hodagi.

Claims (1)

[Scope of utility model registration request] A power supply circuit 2 that generates a DC high voltage from a DC low voltage power source 1, a capacitor 3 that is charged with the DC high voltage, and a primary winding that is assembled into the charging/discharging circuit of the capacitor 3, and a pair of secondary windings that are connected to the secondary winding. electrodes 5, 6
Pulse transformer 4 connected to the capacitor 3
A thyristor 7 that opens and closes a charging/discharging circuit, and a trigger circuit 8 that repeatedly turns on and off the thyristor 7 are housed in a portable container 9,
A portable discharge device for promoting the growth of mushrooms, in which the pulse voltage generated by charging and discharging a capacitor 3 is further boosted by a pulse transformer 4, and a spark is discharged between electrodes 5 and 6 protruding from the end of a container 9.